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23 July 2008 Performance of Echidna fiber positioner for FMOS on Subaru
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Abstract
Echidna is a fiber positioner designed and built by the Anglo-Australian Observatory using novel technology to position 400 fibers in the prime focus field of the Subaru telescope. The fibers feed two near infrared OH-suppression spectrographs, the whole project being known as Fiber Multi Object Spectrograph (FMOS). In order to accommodate the large number of the fibers in the physically limited area, a new fiber positioning method is developed. Stand-alone tests of the positioner at sea level confirm its performance is fully satisfactory. Initial results and prospects of the on-sky commissioning tests of the positioner are also described.
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Masayuki Akiyama, Scott Smedley, Peter Gillingham, Jurek Brzeski, Tony Farrell, Masahiko Kimura, Rolf Muller, Naoyuki Tamura, and Naruhisa Takato "Performance of Echidna fiber positioner for FMOS on Subaru", Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70182V (23 July 2008); doi: 10.1117/12.788968; https://doi.org/10.1117/12.788968
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